128           PetscCall(MatMult(tao->hessian, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
129           PetscCall(VecDot(tao->gradient, tao->stepdirection, &prered));  in TaoSolve_NTL()
244     PetscCall(KSPSolve(tao->ksp, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
268         PetscCall(KSPSolve(tao->ksp, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
278     PetscCall(VecScale(tao->stepdirection, -1.0));  in TaoSolve_NTL()
302         PetscCall(VecAXPY(tl->W, 1.0, tao->stepdirection));  in TaoSolve_NTL()
352         PetscCall(VecAXPY(tl->W, 1.0, tao->stepdirection));  in TaoSolve_NTL()
358           PetscCall(VecDot(tao->gradient, tao->stepdirection, &gdx));  in TaoSolve_NTL()
418       PetscCall(VecDot(tao->stepdirection, tao->gradient, &gdx));  in TaoSolve_NTL()
425           PetscCall(VecCopy(tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
426           PetscCall(VecScale(tao->stepdirection, -1.0));  in TaoSolve_NTL()
431           PetscCall(MatSolve(tl->M, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
432           PetscCall(VecScale(tao->stepdirection, -1.0));  in TaoSolve_NTL()
435           PetscCall(VecDot(tao->stepdirection, tao->gradient, &gdx));  in TaoSolve_NTL()
445             PetscCall(MatSolve(tl->M, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
446             PetscCall(VecScale(tao->stepdirection, -1.0));  in TaoSolve_NTL()
475 …neSearchApply(tao->linesearch, tao->solution, &f, tao->gradient, tao->stepdirection, &step, &ls_re…  in TaoSolve_NTL()
491             PetscCall(VecCopy(tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
496             PetscCall(MatSolve(tl->M, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
499             PetscCall(VecDot(tao->stepdirection, tao->gradient, &gdx));  in TaoSolve_NTL()
506               PetscCall(MatSolve(tl->M, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
531           PetscCall(MatSolve(tl->M, tao->gradient, tao->stepdirection));  in TaoSolve_NTL()
538         PetscCall(VecScale(tao->stepdirection, -1.0));  in TaoSolve_NTL()
543 …neSearchApply(tao->linesearch, tao->solution, &f, tao->gradient, tao->stepdirection, &step, &ls_re…  in TaoSolve_NTL()
610   if (!tao->stepdirection) PetscCall(VecDuplicate(tao->solution, &tao->stepdirection));  in TaoSetUp_NTL()